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Unit 5 Concept Quiz

Nicholas Weiss 10 Fragen

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Fragen in diesem Quiz (10)

  1. 1An object is raised above the ground gaining a certain amount of potential energy. If the same object is raised twice as high it gains _____.
    1. AFour times as much potential energy
    2. BTwice as much potential energy
    3. CHalf as much potential energy
    4. DNeither of these
  2. 2Car A has a mass of 1000kg and a speed of 30km/hr. Car B has a mass of 500kg and a speed of 60km/hr. What is true about their kinetic energies?
    1. ACar A's KE is twice Car B's KE
    2. BCar A's KE is equal to Car B's KE
    3. CCar A's KE is half of Car B's KE
    4. DCar A's KE is four times as muhc as Car B's KE
  3. 3Two identical arrows, one with twice the kinetic energy of the other, are fired into a hay bale. The faster arrow will penetrate _____.
    1. AThe same distance as the slower arrow
    2. BTwice as far as the slower arrow
    3. CFour times as far as the slower arrow
    4. DMore than four times as far as the slower arrow
  4. 4Which of the following is not a unit for power?
    1. AJoule per second
    2. BWatt
    3. CNewton-second
    4. DHorsePower
  5. 5An object that has gravitational potential energy has this energy because of its _____.
    1. ASpeed
    2. BAcceleration
    3. CSize
    4. DPosition
  6. 6A ball is projected into the air with 100 J of kinetic energy which is transformed to gravitational potential energy at the top of its trajectory. When it returns to its original level after encountering air resistance, its kinetic energy is _____.
    1. ALess than 100J
    2. BMore than 100J
    3. C100J
    4. DNot enough information dude!
  7. 7A feather and a coin dropped in a vacuum fall with equal _____.
    1. AForces
    2. BAccelerations
    3. CKinetic Energies
  8. 8Two identical arrows, one with twice the speed of the other, are fired into a hay bale. The faster arrow will penetrate ____________.
    1. AThe same distance as the slower arrow
    2. BTwice as far as the slower arrow
    3. CFour times as far as the slower arrow
    4. DMore than four times as far as the slower arrow
  9. 9An object that has kinetic energy must be _____.
    1. AMoving
    2. BFalling
    3. CAt an elevated Position
  10. 10Engine A has a power rating of 500W and Engine B has a power rating of 1000W. What is true?
    1. AEngine B can do more work than Engine A
    2. BEngine B can change more KE than Engine A
    3. CEngine A can do more work than Engine B
    4. DBoth engines can do the same amount of work, but Engine B can do the work faster.

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Beschreibung
A conceptual review of work, energy, and power
Sprache
English
Aufrufe
110
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